Does anyone know if the NX650 Domminator has a rev limiter fitted. I have just fitted a Dynojet kit and notice that at full throttle with no load it just gets to a limit (about 8000) and then misses and black smokes. I know you may say its running rich. This was my first thought, but up to that point its crisp. I guess if it has a rev limiter then as it works you will be left with unburnt fuel Hence the black smoke. I do know it was like this before the Dynijet was fitted.
Ken Lincolnshire